Water relations and leaf expansion: importance of time scale.

  title={Water relations and leaf expansion: importance of time scale.},
  author={Rana Munns and John B. Passioura and Jinkui Guo and O. Chazen and Grant R Cramer},
  journal={Journal of experimental botany},
  volume={51 350},
The role of leaf water relations in controlling cell expansion in leaves of water-stressed maize and barley depends on time scale. Sudden changes in leaf water status, induced by sudden changes in humidity, light and soil salinity, greatly affect leaf elongation rate, but often only transiently. With sufficiently large changes in salinity, leaf elongation rates are persistently reduced. When plants are kept fully turgid throughout such sudden environmental changes, by placing their roots in a… CONTINUE READING